Guard-operating mechanism for shoe-dressing machines.



C. F. BURKHART.

GUARD O PERATING MECHANISM FOR SHOE DRESSING MACHINES. APPUCATION men FEB. 3. 1914.

1,278,848. Patented Sept. 17,1918.

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Znmentor attorneys C. F. BURKHART.

GUARD OPERATING MECHANISM FOR SHOE DRESSING MACHINES.

APPLICATION FILED ran. 3. 1914.

3 SHEETS-SHEET 2.

bw/x Ennentor a/w/w flaw /14% witnesses (Ittornegs C. F. BU'RKHART.

GUARD OPERATING MECHANISM FOR SHOE DRESSING MACHINES.

APPLICATION FILED FE'B. a. 1914.

1,278,848. Patented Sept. 17, 1918'.

3 SHEETSSHEET 3.

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CHHRLES FBURKHHRT CHARLES n. BURKI-IART, on NEW UNITED STATES PATENToFFIoE,

YORK, N. Y.,=AssIe1\ToR. T BURKHART CORPORATION,

; or BUFFALO, NEW room, A CORPORATION orfNEw YORK...

GUARD-OPERATING MECHANISM r03 snon-nnnssme iy ncn nns.

Specification of L t r t it- Patented Sept. 17, 1918.

Application filed February 3, 1914, Serial No. 816,273.

To all whom it may concern:

Be it known that I, CHARLES F. BURK- HART, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Guard- Operating Mechanism for Shoe-Dressing Machines;and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

This invention relates to guards and guard operating mechanisms for shoe polishing machines and has for an object to provide guards for positioning the shoe upon ashoe polishing machine and a guard for preventing the application of dressing'to undesirable parts of the shoe with improved means for simultaneously operating the said guards;

A furtherobj ect of the invention is to provide a guard which engages the rear of a shoe, a guard which engages the instep of a shoe both for positioning and holding the shoe in such position, and a third guard for also engaging the instep and sides of a shoe to prevent the application of dressing thereto with means for actuating said guards in synchronism. 7

l/Vith these and other objects in view the invention comprises certain novel constructions, combinations and arrangement of parts as will be hereinafter morefully described and claimed. I

Figure l is a perspective view of the front and rear guard'and thei'r'operating mechanism removed-from the housing and supporting devices.

Fig. 2 is a view. of the guard operating mechanism in1s1deelevat1on, the housing be ing broken away to show the device.

Fig. 3 is a view similar to Fig. 2, the parts being moved to engaglng position.

Fig. 4 s a perspective view of'the instep guards and the means for operating.

Fig. 5 is a detailfragmentary view of the. initial releasing means.

Fig. 6is a*view of'the cloth polijsher mechanism in associated position, but. re moved from any casing, or supporting means.

Fig. 7 is a sectional view taken on line 5-5 of Fig. 6'.

" Fig. 8'is a sectional v-iew'of one of the air cushions for cushioning the reciprocation ofthe polisher head.

Fig. 9 is a view of the in side elevation.

Fig. 10 is a detailed sectional View showing the cam and rack for raising and lowering the polisher head.

polisher head shown Like characters of reference designate corpresent invention includes the said clamps 10, 11 and 13 and'the means for simultaneously operating the said clamps to bring them into initial clamping engagement with the shoe and to release them from such clamping engagement when the workof the machine has been accomplished.

The clamps are intended to be operated with a polishing machine provided with a carriage shown conventionally at 15, such carriage forming no part of the present invention except as it cooperates with the guard operating device and no operating means for the carriage is shown, it being understood that the carriage is reciprocated as indicated at Figs. 2 and 3 by any approved or convenient mechanism.

The clamp 10 is carried upon rods 16 which slide through guides 17 and is actuated by a weight18 attached to a cable 19 passing over a pulley 20jand connected with a lever 21. 7 It will be obvious, especially from Fig. 1 thatthetendency ofthe weight 1-8 is to movethe rods '16 and the clamping member 10 in thedirection-im dicatecl by thearrow in Fig; l or toward the shoe as indicated'in dotted line'sin Fig; 2. It is obvious, therefore, that when the weight 18' is permitted to actthe clamp 10 willlbe "moved into'cla'mping positions The clamp 11" is carried upona yoke 22 pivoted" to'swing upon trunnions 23 so that it may move in the-direction indicated by the arrow-in Figsll and 2 toward the shoerest 12 as indicated at Fig. 3 to clamp the shoe mounted upon su'chshoe rest; The move ment of the yoke 22 and clamp 11 toward the shoe is accomplished to a certain. extent by the: weight of the .yoke and clamp itself but also by the Weight 24 which is 2 and 3; The connection between the lever 27 and the yoke 23 consists of a link 31 and crank-arm 32, the latter being rigidly mounted upon one of the pintles 23. It is obvious, therefore, that as the lever 27 is actuated by the weight 24 the clamp 11 will move downwardly from the position shown at Fig. 2 to the position shown'at Fig. 3 and thereby clampingly engage the shoe. The clamps 10 and 11 are connected to move in synchronism by means of a link 33, the said link being provided with a slot 34 where it engages with the lever 27 to permit a slight variation of the registration of the clamps 10 and 11 to conform .to different sizes and shapes of shoes. It is obvious that the guards 10 and 11 will, however, move simultaneously into clamping position actuated by the weights 18 and 24 and that such guards will by reason of such independent weights engage the shoe with independent clamping force, variation being permitted by the slot as aforesaid.

Above the yoke 22 the apron 14 is mounted to slide in guide-ways 35 rigidly secured to the housing and also to slide upon a rod 36 rigidly" secured to the housing in any approved manner as by having its opposite ends carried by angle-irons 37. The apron also carries a shaft 38 upon which are mounted rollers39 bearing upon cam surfaces 40 of the yoke 22 and also prowardly the vided with a roller 41 engaging uponthe cam 42 also carried by such yoke. A spring 43 or other means is provided for assisting in the movement of the apron clownraising being accomplished by the cams 40 and .42 bearing under the rollers 39 and 41. It is obvious, therefore, that asthe mechanism moves to raise the guard '11; and-move the guard '10 backwardly the apron .1 and supporting apparatus which forms the subject matter lauand guard 13-are also raised. t

cam 44- and thus permits the lever'27 to move to the position shown at Fig.3 which permits the weights 18 and 24 to move the guards into engaging position and also permits the spring 43 to act likewise. 1t it desirable that the clamping members remain in clamping position during several reciprocations of the carriage as the carriage reciprocates several times to finish the brushing and applying function and also to retain the shoe in position while the cloth polisher is operating. For this purpose as the carriage moves forward to the position shown at Fig. .3 the cam 44 lifts the link 46 until it is released from the pin 47 as shown at said Fig.3 so that when the carriage returns to theposition shown at Fig. 2 the link being, released from and riding upon the pin 47 permits the bell-crank lever 28 to ride up the incline of the cam 44 without affecting the position of the upper end of the'lever 27. After the polishing and applying functions have been performed by the several reciprocations of the carriage it is intended that the carriage shall stop and remain stationary while the cloth polisher is broughtinto action. The carriage remains stationary at, the position shown at Fig.2 with the bell-cranklever supported upon the cam 44. When 1 the cloth polisher is lowered into position by lowering the yoke 49 the spring 50 throws thelever 48 forward until the link 46 again engages over the pin47 and as the cloth theposition shown at Fig. 2 which releases the shoe by moving the guards to the position shown at-Fig. 2. 1' I The yoke 49 is pivoted at 51 and is raised by'means of the sprocket chain's 52passing over the sprockets 53, which said sprockets 53 are carried upon the shaft 54. The shaft 54 is provided with a pinion 55 engaged by a rack 56 which in turn is actuated by an eccentric '57. The eccentric57 is carried by a gear 58 driven from the motor 59.

' The yoke 49 is o e ed by its own weight whenthe sprockets 53. are rotated in one dlrection and carries the shoe cleaning and polishing heads 60 which are oscillated by. the links 61 driven fromthe crank 62 which.

in turn is driven 'by the worm 63and sprocket chains 64 from the motor 59.

The cleaning heads 60 are mountedfupon shafts 65 Which are provided with segmental teeth as shown at Fig. 10 engaging the racked side of the piston 66 mounted in the closed cylinder 67 to cushion the oscillation of the cleaning heads.

It will thus be seen that the shoe is engaged upon the initial movement of the carriage to start the operation and is retained in such position by the Weights until the entire operation of brushing, applying and polishing have been accomplished When the guards are automatically moved away to release the shoe. It will also be noted that the guards are all actuated by Weights or springs Which only yieldingly engage the shoe thus permitting the shoe to be Withdrawn at any time should the party being operated upon desire to so remove the shoe.

I claim:

1. In a shoe polishing machine embodying a reciprocable carriage and a cloth polisher acting after the completion of reciprocation of the carriage, guards positioned to engage a shoe at the rear, at the front and at the top; mechanism actuated from the initial movement of the carriage to bring the guards simultaneously into clamping position; and means actuated from the final movement of the cloth polisher to remove the guards from engagement.

2. In a shoe polishing machine embodying a reciprocating carriage and a cloth polisher acting after the completion of reciprocation of the carriage, clamps for engaging a shoe; means actuated from the initial movement of the carriage for bringing the clamps into engaging positions; and means actuated from the final movement of the cloth polishing mechanism for moving said clamps out of engaging position.

3. In a shoe polishing machine embodying a movable carriage and a movable clot 11 pol-' actuating mechanism.

5. In a shoe polishing machine,a shoe clamp, clamp operatin mechanism, a carriage and means carried by the carriage for controlling the clamp operating mechanism.

6. In a shoe polishing machine a shoe clamp, a clamp operating mechanism, a carriage, means carried by the carriage for controlling the elamp operating mechanism, actuating mechanism, means actuated by the actuating mechanism in conjunction With the carriage at a predetermined position in its cycle of movement to actuate the clamp operating mechanism.

7. In ashoe polishing machine, a carriage, a shoe clamp, shoe clamp actuating mechanism actuated at each reciprocation of the carriagewithout actuating the clamp and means including the clamp actuating mechanism for actuating the clamp following a certain reciprocation of the carriage.

In testimony whereof I ailix my signature in presence of two Witnesses.

CHARLES F. BURKHART.

Witnesses L. L. MoRRILL, GEORGE M. BOND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- "Washington, D. 0. 

